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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:47:50 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:47:50 +0000 |
| commit | 7c0639a3af697d4ae7a5db4d2ecc09eed43cad35 (patch) | |
| tree | b28a6eef28064256422bed5e477ee51f2cbb0c0b /mm/filemap.c | |
| parent | Adding debian version 6.7.9-2. (diff) | |
| download | linux-7c0639a3af697d4ae7a5db4d2ecc09eed43cad35.tar.xz linux-7c0639a3af697d4ae7a5db4d2ecc09eed43cad35.zip | |
Merging upstream version 6.7.12.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 5be7887957..321349e2c9 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -4150,7 +4150,23 @@ static void filemap_cachestat(struct address_space *mapping, /* shmem file - in swap cache */ swp_entry_t swp = radix_to_swp_entry(folio); + /* swapin error results in poisoned entry */ + if (non_swap_entry(swp)) + goto resched; + + /* + * Getting a swap entry from the shmem + * inode means we beat + * shmem_unuse(). rcu_read_lock() + * ensures swapoff waits for us before + * freeing the swapper space. However, + * we can race with swapping and + * invalidation, so there might not be + * a shadow in the swapcache (yet). + */ shadow = get_shadow_from_swap_cache(swp); + if (!shadow) + goto resched; } #endif if (workingset_test_recent(shadow, true, &workingset)) |